Dip inkwell



R. SPILMAN April 3, 1951 DIP INKWELL Filed Sept, 15, 1946 INVENTOR RAYMOND SPILMAN BY ATTORNEY Patented Apr. 3, 1951 s iv DIP IN KWELL Raymond Spihnan, Bronxville, N. Y., assignor to L. E. Waterman Company, New York, N. Y., a corporation of New York Application September 13, 1946, Serial No. 696,844

2 Claims. (01. 120-59) This invention relates to a container cap for a dip ink well. More particularly it relates to a reservoir type cap for use with a standard commercial ink bottle and is designed to replace the In the drawings, i is a standard commercial type'ink bottle or container. As shown, it is somewhat angular in shape and has flat sides, but it. may have any generallyv suitable shape and sides. The container has a circular neck ll in which is formed the opening l2. A circular closure [3 having a flange I4 is adapted to cover opening l2 as by gripping and partially overlying the neck, as shown in Fig. 2, The closure has an cap ordinarily carried by the bottle at the time 5 orifice i5 in the lower part thereof which is of of purchase. The invention further relates to a a shap generally rese an inverted y 11018 housing for the cap and container. with the lower portion somewhat elliptical in out- Generally speaking, the invention comprises, in line (Fig. 4). A washer l6 is interposed between combination, a container for ink having an openthe top of neck H and the inner Side of closure ing through which t may pass, a dip ll 10 I3 and serves to prevent ink from leaking past or reservoir type cap for the container, a base for the neck and 010S111'e- 1 supporting the cap and container in an inclined A cap or head I! of generally conical shape is position, and a cover adapted to be secured to secured to the closure, as by attachment to the the base and to enclose the cap and container. flanged portion I4 through means of adhesive The cover is provided with an aperture which or solder or byapress fit. For practical purposes, (opens into the dip well or reservoir of the cap the cap and closure may be considered as one and which may receive a, pen holder. According piece to constitute a head, as the two may be to the invention the ink container, with the dip joined together prior to being attached to the well cap attached thereto, is simply placed on its neck II. The closure may thus be regarded as sidefor use, rather than inverted as is customary, a wall or end of the cap and, as shown, such and hence it rests inastabler position. If desired, wall is circular in shape and is provided with the cap and container may be used independently the flange M. The cap has a hollow interior'or of the housing, as together they constitute a selfdip well I8. An entrance I9 in the upper portion contained unit. of the cap provides access to the dip well.

An object of the invention is to provide an ink The cap IT, with the wall or closure [3 attached, container cap as above described. A further obmay be secured or locked to the neck II by coject is to provide a base and cover for enclosing operating locking means disposed on the flanged the container and cap in a compact form, the wall and neck. Care must be had in attaching cover incorporating a pen-supporting aperture. the Wall or closure l3 to the cap I! to locate Other objects and advantages will appear hereinthe orifice in such a position that its uppermost after. position is below the lowermost portion of en- The invention may be better understood by trance 1.! in the cap, as shown in Fig. 2. The referring to the accompanying drawings in which locking means on the neck ll comprise threads,

. a preferred embodiment is illustrated and in shown in the form of thread lengths 29, 2|, each which: length being separated from the other and each Fig. 1 is a plan view looking down on the cover having an engaging portion and a locking porenclosing the assembled dip well cap and contion. In Figs. 5 and 6 are shown the engaging tainer; portion 22 of thread length 2| and the locking Fig. 2 is a sectional view on the line 2-2 of portion 23 of thread length 20. The locking Fig. 1; means on the flanged wall M of the cap com- Fig. 3 is a perspective view of the cap; prise thread engaging members in the form 01 Fig. 4 is a perspective view of a closure for lugs 24, 25, as shown in Fig. 8. In applying the the ink bottle; cap to the neck, the lugs are aligned with the Fig. 5 is a perspective View of a commercial spaces or slots, one of which is shown at 25, which type ink bottle; separate the thread lengths, and the cap is moved Fig. 6 is a fragmentary side view of the neck inwardly over the neck until the lugs come against of the ink bottle of Fig. 5; the stop 21. Then the cap is twisted so that Fig. 7 is a side view partly in section ofthe the lugs engage the thread lengths at the engagclosure of Fig. 4; and ing portions of the latter. Lug 24, for example,

Fig.- 8 is a bottom View of the closure of Fig 4. will engage the thread engaging portion 22. The

cap is twisted about the neck until the, lugs become locked in the locking portions of the thread lengths. Lug 25 (Fig. 8), for example, will be locked in the locking portion 23 (Fig. 5). The lugs move in grooves 28, 29 (Fig. 6) formed in the neck between the two thread lengths and the stop 21. At the locking portions of the thread lengths the grooves are more constricted than at the engaging portions.

As will be understood, the position of the lugs relative to the orifice in the flanged wall 13 of the cap is such that the orifice will invariably be ably with the cap disposed below the container,-

and as shown, such means may be in the form of base 30 having a transverse rib 3| integral therewith. Base 30 is also'provided with suitable lands or ledges 32, 33, and upstanding portions 34, 35. The portion 35 is hooked, as at 30, where it may engage the cap I! along an edge of the 1 entrance 19.

A cover or case 31 is adapted to be secured to base 36 and to enclose the container and cap therein. The lower portions 38' and 39 of cover 31 are suitably shaped to engage the lands 32, 33, and upstanding portions 34, 35, respectively,

of base 30, forming a smooth compact housing for the cap and container. Cover 3? has an aperture 4t therein which opens into the dip well 18 of c'ap I! and which also is adapted to receive a 5 pen holder and nib, as indicated at 4 i. A shoul- 1 char 42 near the base of the aperture serves to 1 support the pen holder while the nib is immersed in ink 43.

- In assembling the ink container in the housi ing, the cap which ordinarily comes with the ink {container is removed and replaced by the cap of 1 this invention. As described above, the new cap- 5 maybe regarded as having the closure 13 as an integral part thereof. Upon covering or enclos- I ing the container neck with the cap in the manner described, it is possible to place the container onits side in base 30 without danger of losing ink 43 through overflow from entrance l9 in the cap. This will be apparent when it is considcred that ink 44 from container I will flow through orifice I to dip well l8 only so long as air may enter the container through the orifice.

When the ink level in the dip well rises 5 above the uppermost portion of the orifice, the flow of air to container will cease, and thereafter the atmospheric pressure on the ink in dip well [8 will counterbalance the combined pressures of the air and the ink head in container 10. The ink levels in container [0 and dip well 1' T8, at the time when the pressures have become 1 equal, will be substantially as shown in Fig. 2.

- In this. connection, it was found that with the general inverted keyhole shape of the orifice, the

lower portion having a generally elliptical contoun'the gurglin and/or bubbling effect other- Jwise incident to the flow of ink from the contain- E er to the dip well was avoided.

' With the cap and container in position in base 30,, cover 3? may be easily pushed into place, and the device is ready'for use. that base has a fairly large volume such that 4 case of ink leaks through breakage or other It should be noted accidents, it will retain all the ink which may have been present in the container. Base 30 may conveniently be made of metal, such as aluminum, but may also be made of plastic or other desirable material, as may cover 31.

It will be understood that the invention as described represents a preferred embodiment and that the invention is capable of various modifications within the scope thereof.

In the light of the foregoing description, the following is claimed:

1. In a device of the character described, in combination, a container for ink having a neck through which said ink may pass, a hollow removable cap for said container, a base for supporting said container and cap in an inclined position with the cap disposed below the container, said base having means for engaging the cap, said cap having a flanged Wall adapted to be locked to said neck, said cap having an enwallv having an orifice through which ink may pass from said container to the lower portion of said cap opposite said entrance, cooperating means on said flanged wall and said neck for invariably locating said orifice in its lowermost position relative to the ink level in the container, thereby permitting the pressures on each side of the orifice to counterbalance each other hefore the ink in said cap overflows through said entrance, and a cover member engageable with the base to form a housing for the cap and container, said cover member having an aperture alined with the entrance in the cap.

2. In a device of the character described, in combination, a container for ink having a neck through which ink may pass, a hollow removable head for said container, a base for supporting said container and head in an inclined position with the head disposed below the container, said head having a flanged wall adapted to grip and I enclose said neck, said head having an entrance in an upper portion thereof, said flanged wall having an orifice through which ink may pass from said container to the lower portion of said head opposite said entrance, cooperating means on said flanged wall and said neck for invariably locating said orifice in its lowermost position relative to the ink level in the container, said cooperating means comprising a thread-engaging member on said flanged wall, and threads on said neck, and a cover member engageable with the base to form a housing for the head and container, said cover member having an aperture alined with the entrance in the head.

RAYMOND SPILMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Sengbusch Dec. 11, 1945 

